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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 394 · 40 questions
TalentJR

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

NameDateTime takenScore ___ / 40
  1. 1.True or false: clear glass is transparent. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) clear plastic film (d) air
  3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
  7. 7.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a clock to check
  9. 9.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) air (d) clean water
  10. 10.True or false: a brick is opaque. (a) True (b) False
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a magnet (d) a straight stick
  12. 12.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  13. 13.True or false: tissue paper is transparent. (a) False (b) True
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a magnet (d) a sunny open place
  16. 16.🔍 Which is the odd one out? (a) a steel plate (b) air (c) a book (d) your hand
  17. 17.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a magnet
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
  21. 21.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a magnet (d) a mirror
  22. 22.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  23. 23.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  24. 24.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a balloon (d) turmeric powder
  25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  26. 26.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) a steel plate
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a balloon
  28. 28.🔍 Which is the odd one out? (a) air (b) clear glass (c) a book (d) clear plastic film
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same spot
  31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) yeast (d) a straight stick
  33. 33.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  35. 35.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  37. 37.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) a wooden board (d) a book
  40. 40.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed

Answer key

  1. True
  2. frosted glass
  3. needed
  4. True
  5. we keep it the same
  6. the same spot
  7. False
  8. yeast
  9. butter paper
  10. True
  11. a straight stick
  12. not needed
  13. False
  14. we keep it the same
  15. a magnet
  16. air
  17. transparent
  18. we change it
  19. a magnet
  20. turmeric powder
  21. a sunny open place
  22. not needed
  23. True
  24. chalk to mark shadows
  25. not needed
  26. a steel plate
  27. a balloon
  28. a book
  29. does not work well
  30. the time of day
  31. long
  32. yeast
  33. transparent
  34. a cap or hat
  35. not needed
  36. not needed
  37. around noon
  38. False
  39. oily paper
  40. needed

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